A curated collection of browser-based developer utilities. Format, validate, encode, and debug β all data stays in your browser.
Format, validate and prettify JSON
Test and debug regular expressions live
Encode/decode Base64 strings and files
Generate MD5, SHA-1, SHA-256 hashes
Decode and inspect JWT tokens
Format and beautify SQL queries
Format and validate YAML files
Live Markdown preview
Compare two text blocks side by side
Encode/decode URLs and query strings
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